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person radical 亻rén and ladle 匕 bǐ

Below the 艹cǎo is the character 化 huà which means change. We can think of the parts of the 艹cǎo plant / grass have 化 huà changed to becom flowers 花 huā.

Another way of thiking is:
The grass (plant) 艹cǎo crown on a person's 亻rén head is likely a laurel of flowers 花 huā

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person / man 人 rén

The drink from grass / herb 艹cǎo that the person 人 rén takes small 小 xiǎo sips until it's complete 十 shí is tea 茶 chá. 

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silk 纟and spoon 勺 sháo

Herb or grass 艹cǎo with silk 纟 and spoon 勺sháo is medicine 药 yào.

Making an appointment 约 yuē is getting medicine 药 yào without the grass 艹cǎo .

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Sun / Day 日 rì

The grass 草 cǎo grows during the day 日 rì with the sun 日 rì that rises early in the morning 早 zǎo.